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* data/glr.c (yyreturn): Use "Cleanup:" rather than "Error:"

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in yydestruct diagnostic, since it might not be an error.
Problem reported by Joel Denny near end of
<http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
* data/lalr1cc (yyerturn): Likewise.
* data/yacc.c (yyreturn): Likewise.
* tests/calc.at (_AT_CHECK_CALC_ERROR): Adjust to the above change.
This commit is contained in:
Paul Eggert
2005-08-22 02:31:10 +00:00
parent eab522e49a
commit dd5f2af2bd
5 changed files with 25 additions and 6 deletions
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18
ChangeLog
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@@ -1,5 +1,23 @@
2005-08-21 Paul Eggert <eggert@cs.ucla.edu>
* data/glr.c (yyreturn): Use "Cleanup:" rather than "Error:"
in yydestruct diagnostic, since it might not be an error.
Problem reported by Joel Denny near end of
<http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
* data/lalr1cc (yyerturn): Likewise.
* data/yacc.c (yyreturn): Likewise.
* tests/calc.at (_AT_CHECK_CALC_ERROR): Adjust to the above change.
* src/files.c: Remove obsolete FIXME comment.
* data/glr.c (YY_SYMBOL_PRINT): Append a newline, for consistency
with the other templates, and to fix bogus run-on messages such
as the one reported at the end of
<http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
All callers changed to avoid the newline.
(yyprocessOneStack): Output two lines rather than one, to accommodate
the above change. This changes the debug output format slightly.
* data/glr.c (yyresolveValue): Fix redundant parse tree problem
reported by Joel E. Denny in
<http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00004.html>

4
data/glr.c
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@@ -2169,7 +2169,7 @@ b4_syncline([@oline@], [@ofile@])])dnl
yyreturn:
if (yytoken != YYEOF && yytoken != YYEMPTY)
yydestruct ("Error: discarding lookahead",
yydestruct ("Cleanup: discarding lookahead",
yytoken, yylvalp]b4_location_if([, yyllocp])[);
/* If the stack is well-formed, pop the stack until it is empty,
@@ -2183,7 +2183,7 @@ b4_syncline([@oline@], [@ofile@])])dnl
{
yyGLRState *yys = yystates[0];
]b4_location_if([[ yystack.yyerror_range[1].yystate.yyloc = yys->yyloc;]]
)[ yydestruct ("Error: popping",
)[ yydestruct ("Cleanup: popping",
yystos[yys->yylrState],
&yys->yysemantics.yysval]b4_location_if([, &yys->yyloc])[);
yystates[0] = yys->yypred;

4
data/lalr1.cc
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@@ -879,11 +879,11 @@ yyabortlab:
yyreturn:
if (yylooka_ != yyeof_ && yylooka_ != yyempty_)
yydestruct_ ("Error: discarding lookahead", yyilooka_, &yylval, &yylloc);
yydestruct_ ("Cleanup: discarding lookahead", yyilooka_, &yylval, &yylloc);
while (yystate_stack_.height () != 1)
{
yydestruct_ ("Error: popping",
yydestruct_ ("Cleanup: popping",
yystos_[yystate_stack_[0]],
&yysemantic_stack_[0],
&yylocation_stack_[0]);

4
data/yacc.c
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@@ -1383,11 +1383,11 @@ yyexhaustedlab:
yyreturn:
if (yychar != YYEOF && yychar != YYEMPTY)
yydestruct ("Error: discarding lookahead",
yydestruct ("Cleanup: discarding lookahead",
yytoken, &yylval]b4_location_if([, &yylloc])[);
while (yyssp != yyss)
{
yydestruct ("Error: popping",
yydestruct ("Cleanup: popping",
yystos[*yyssp], yyvsp]b4_location_if([, yylsp])[);
YYPOPSTACK;
}

1
tests/calc.at
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@@ -405,6 +405,7 @@ sed '/^Starting/d
/^Reducing/d
/^Shifting/d
/^state/d
/^Cleanup:/d
/^Error:/d
/^Next/d
/^Discarding/d